xBIM使用Log4Net来记录异常不适合的处理错误和警告。它在xBIM几何引擎中被大量使用来记录所有几何错误。如果您的文件看起来不太正确，则应始终先检查日志。Log4Net有许多可能的配置，包括记录到控制台，创建连续或滚动日志文件等。这里可以找到一些例子。在控制台中编写所有彩色日志消息的最基本配置可能如下所示：
代码语言：javascript复制 1 <?xml version="1.0" encoding="utf-8" ?>
2 <configuration>
3 <configSections>
4 <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
5 </configSections>
6 <log4net>
7 <!-- 定义默认日志操作 -->
8 <root>
9 <appender-ref ref="console" />
10 <!-- 设置日志等级 ALL DEBUG INFO WARN ERROR FATAL NONE -->
11 <level value="ALL" />
12 </root>
13 <appender name="console" type="log4net.Appender.ColoredConsoleAppender">
14 <mapping>
15 <level value="FATAL" />
16 <foreColor value="White" />
17 <backColor value="Red" />
18 </mapping>
19 <mapping>
20 <level value="ERROR" />
21 <foreColor value="Red, HighIntensity" />
22 </mapping>
23 <mapping>
24 <level value="WARN" />
25 <foreColor value="Green, HighIntensity" />
26 </mapping>
27 <mapping>
28 <level value="INFO" />
29 <foreColor value="Blue, HighIntensity" />
30 </mapping>
31 <mapping>
32 <level value="DEBUG" />
33 <foreColor value="White" />
34 </mapping>
35 <layout type="log4net.Layout.PatternLayout">
36 <conversionPattern value="%-5level - %message [%logger %type.%method Line %line]%newline" />
37 </layout>
38 </appender>
39 </log4net>
40 <startup>
41 <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2" />
42 </startup>
43 </configuration>您还可以使用xBIM基础结构来记录您自己的消息，如下所示：
代码语言：javascript复制1 using Xbim.Common.Logging;
2
3
4 var log = LoggerFactory.GetLogger();
5
6 log.Info("Examples are just about to start.");
7 log.Warn("Always use LINQ instead of general iterations!");
8 log.Error("This is how the error would be logged with log4net.");
9 log.Info("All examples finished.");
